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4. Troubleshooting

112

4

Table of Contents

Safety Notices2
- Important Safety Notices2
- Laser Safety3
Symbols, Abbreviations and Trademarks4
- Trademarks4
- Table of Contents5
1 Installation12
Installation Requirements12
- Environment12
- Machine Level12
- Machine Space Requirement12
- Power Requirements14
- Installation Procedure14
2 Preventive Maintenance16
- User Replaceable Items16
3 Replacement and Adjustment18
Before You Start18
Special Tools19
Exterior Covers20
- Rear Cover20
- Operation Panel21
- Right Cover22
- Left Cover22
- Front Cover Unit23
Laser Optics25
- Caution Decal Locations25
- Laser Optics Housing Unit25
AIO Cartridge30
- AIO Cartridge (All in One Cartridge)30
- Black AIO Motor30
- Color AIO Motor33
Image Transfer35
- Image Transfer Belt Unit35
- ITB (Image Transfer Belt) Cleaning Unit36
- Agitator Motor37
- ITB (Image Transfer Belt) Contact Motor38
- ITB (Image Transfer Belt) Contact Sensor39
- TM (Toner Mark) Sensor Base40
- Waste Toner Bottle Set Sensor41
- Waste Toner Overflow Sensor43
Paper Transfer44
- Transfer Unit44
- Transfer Roller44
- Registration Roller46
- Registration Sensor47
- Registration Clutch47
Image Fusing49
- Fusing Unit49
- Fusing Lamp50
- Transport/Fusing Motor51
Paper Feed53
- Paper Feed Clutch53
- Paper Feed Roller53
- Separation Pad54
- Paper End Sensor55
Paper Exit57
- Paper Exit Roller57
- Paper Exit Sensor58
Electrical Components60
- Controller Board60
- EGB (Engine Board)63
- FCU (G183/G184 Only)66
- Interlock Switches67
- Fusing Fan Motor68
- LSU Fan Motor68
- ID Chip Board69
- Psu70
- High Voltage Power Supply Board72
- Temperature/Humidity Sensor73
- Duplex Motor (Duplex Model)73
- Speaker (G183/G184 Only)74
- Eeprom75
Adf79
- ADF Unit79
- Original Tray80
- ADF Feed Unit81
- ADF Separation Pad81
- ADF Front Cover82
- ADF Rear Cover82
- ADF Cover83
- ADF Motor83
- Original Set Sensor85
- ADF Cover Open Sensor86
- ADF Feed Sensor86
- ADF Drive Board87
Scanner89
- Scanner Unit89
- Scanner Top Cover91
- Scanner Carriage Unit92
- Exposure Lamp94
- Lamp Stabilizer Board95
- Scanner Motor96
4 Troubleshooting98
Error Codes98
- Overview98
- Error Codes List98
Service Call Conditions102
- Summary102
- Engine SC102
- Controller SC110
Image Problems112
- Overview112
- Image Problem112
5 Service Tables114
Service Program114
- Overview114
Smart Organizing Monitor (Printer Model)115
- Overview115
- Printer Driver Installation (USB Connection)115
- Entering the Printer Configuration115
- Printer Configuration Menu List117
Service Menu (MF Model)140
- Overview140
- Maintenance Mode Menu140
- Fax Service Test Menu150
Firmware Updating152
- Printer Model152
- Engine Firmware155
- MF Model156
- Boot Loader Firmware159
6 Detailed Section Descriptions160
Machine Overview160
- Component Layout160
- Paper Path161
- Drive Layout162
- Electrical Component Layout163
- Board Structure166
- Printing Process168
Process Control170
- Overview170
- Process Control Flow170
- Process Control Self-Check171
Laser Exposure174
- Overview174
- Optical Path175
- LD Safety Switch176
- MUSIC (Mirror Unit Skew and Interval Correction)177
AIO (All in One) Cartridge178
- Overview178
- Drive179
- OPC Charge and Cleaning180
- Waste Toner Collection from the OPC181
- Toner Mixing and Transport181
- Development Mechanism182
- Toner Near End and End Detection182
Paper Feed184
- Overview184
- Drive and Paper End Detection185
- Tray Lift186
- By-Pass Feed187
- Duplex (G167/G183/G184 Only)188
Image Transfer189
- Overview189
- Drive and Transfer Belt Roller Bias190
- Transfer Belt Contact190
- ITB (Image Transfer Belt) Cleaning Unit191
- Transfer Roller Overview192
- Paper Transfer and Discharge193
- Waste Toner Collection194
Fusing and Exit195
- Overview195
- Drive196
- Pressure Release Mechanism197
- Temperature Control198
- Energy Saver200
Controller201
- Overview201
Adf205
- Overview205
- Paper Path205
- Timing Chart206
Scanner208
- Overview208
- Drive208
7 Specifications210
General Specifications210
- Printer Model210
- MF Model212
- Option218
Supported Paper Sizes219
Machine Configuration221
- Printer Model (G165/G166/G167)221
- MF Model (G181/G183/G184)222

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